Payroll Year-End 2026: What to Check Before You File W-2s

The last payroll of the year is a good time to slow down and check your work. W-2s are permanent records your employees use to file their own tax returns, and fixing one after it goes out takes much more effort than getting it right the first time. This guide covers the key 2026 year-end deadlines, the checks worth doing before you file, and how to handle corrections if something slips through.

Start with employee information

Most W-2 problems come from simple data errors: a misspelled name, a transposed digit in a Social Security number, or an old mailing address. Before your final payroll of the year, ask each employee to confirm their legal name (exactly as shown on their Social Security card), their Social Security number, and their current address. The Social Security Administration offers employers the Social Security Number Verification Service (SSNVS) to check that names and numbers match SSA records. It’s meant for wage reporting, not for screening job applicants.

Know the 2026 deadlines

For most federal year-end forms, the usual deadline is January 31. In 2027, January 31 falls on a Sunday. Under the IRS rule, when a filing or furnishing date falls on a Saturday, Sunday, or legal holiday, the due date moves to the next business day. That makes the key date Monday, February 1, 2027.

The IRS’s 2026 General Instructions for Forms W-2 and W-3 confirm the February 1, 2027 date for both filing with the SSA and furnishing copies to employees. They also note that extensions to file W-2s are granted only in limited cases. The IRS employment tax due dates page explains the extra 10 days for Forms 941 and 940 when deposits were made on time. Your state may have its own year-end wage reports with different deadlines, so check those too.

Something new on 2026 W-2s

Recent tax law added new reporting items. The 2026 W-2 instructions add box 12 code TP for cash tips reported to the employer and code TT for qualified overtime compensation. If you have tipped or overtime-eligible staff, make sure your payroll system tracks these amounts separately and is updated for the 2026 forms.

1099-NEC: the threshold changed

If you paid independent contractors in 2026, note the new reporting threshold. The IRS says the Form 1099-NEC threshold is $2,000 for payments made after December 31, 2025, up from $600, a change made by the One Big Beautiful Bill Act. Collect a Form W-9 from each contractor now, if you haven’t already, so you have the right name and taxpayer ID when it’s time to file.

S corporation owners: health insurance belongs on the W-2

If your business is an S corporation and pays health insurance premiums for an owner who holds more than 2% of the shares, those premiums have to be reported on the owner’s W-2. The IRS explains that the premiums are included in Box 1 wages but left out of Boxes 3 and 5 (Social Security and Medicare wages) when they’re paid under a plan for employees. Getting this right helps the owner qualify for the self-employed health insurance deduction on their personal return. This is easy to miss, so add the premiums to payroll before the final run of the year.

Reconcile before you file

The W-3 totals should agree with the four Forms 941 you filed for the year, and both should agree with your books. Compare total wages, federal income tax withheld, Social Security wages and tax, and Medicare wages and tax. Then tie those figures to the payroll expense and payroll liability accounts in your general ledger, and confirm that your EFTPS deposit history matches the liabilities reported on each 941.

A reconciliation example

Here’s a hypothetical. A small company’s four 941s report total wages of $50,000, $50,000, $50,000, and $52,000, for $202,000 for the year. Its draft W-3 shows $200,000. The $2,000 gap turns out to be a December bonus that was paid and reported on the fourth-quarter 941 but entered with the wrong pay type, so it didn’t flow to the W-2s. The owner corrects the pay type, the W-3 now shows $202,000, and the payroll expense account in the books also reads $202,000. A problem found before filing takes minutes to fix. The same problem found after filing means corrected forms.

Year-end checklist

• Employee names, SSNs, and addresses confirmed
• Bonuses, fringe benefits, and S-corp owner health insurance entered before the final payroll
• Tips and overtime tracked for the new box 12 codes, if they apply
• Four 941s reconciled to the W-3 and to the general ledger
• Contractors paid $2,000 or more in 2026 identified, with W-9s on file
• W-2, W-3, 941, 940, and 1099-NEC deadlines on the calendar
• Reminders sent about new W-4s for 2027

New W-4s for 2027

Employees don’t have to file a new W-4 every year, but year-end is a good time to remind them to update theirs after a life change such as marriage, a new child, or a second job. The exception is employees who claim exemption from withholding. According to IRS Topic 753, an exempt W-4 is valid only for the calendar year it’s given. To stay exempt, the employee must give you a new one by February 15 of the following year. If you don’t receive it, you must withhold as if the employee is single or married filing separately with no other adjustments. Ask for these forms in January so the deadline doesn’t sneak up on you.

If you find a mistake after filing

Errors happen. If a W-2 has already gone out with the wrong amount, name, or Social Security number, issue a Form W-2c to the employee and file it with the SSA along with Form W-3c. If you were required to e-file the original W-2, you must also e-file the correction. If the error changes tax amounts reported on a Form 941, you may also need to file Form 941-X for that quarter.

When to get help

It’s worth getting help if your 941s and W-3 don’t agree and you can’t find out why, if you missed deposits during the year, if you have S corporation owner-employees, if you have employees in more than one state, or if you switched payroll providers mid-year. Each of these can create gaps that are much easier to close before February than after.

Finish the year with confidence

Mac Neal LLC helps small businesses close out payroll accurately and on time. Malcolm Alexander-Neal is a QuickBooks ProAdvisor (Levels 1 and 2) and is Intuit Bookkeeping and QuickBooks Workforce certified. Our Payroll Services start at $99 per month for up to 5 employees, plus $8 for each additional employee, with setup from $199. If you’d rather work through year-end yourself, download our free “Payroll Year-End Checklist” here (also en español), or browse all our guides on the Resources page.

This article is general information, not tax or legal advice. Check the official pages each year.

Written by

Malcolm Alexander-Neal

Founder of Mac Neal LLC. More than fifteen years across accounting, financial services and regulation, including the CFTC and NFA. About Malcolm →